Melges 24 Phrf Rating System. Using san diego phrf ratings, a speedy melges 32 is just three seconds a mile different on a buoy course than a cruisy beneteau 44.7m. That's why all phrf fleets should go to a 3 number.

The vmgs from the polars at 8 knots do confirm that upwind the ic37 is. Phrf is a locally administered handicapping system that uses the perceived speed potential of a yacht as the basis for the handicap.